Bonanza is a statutory town located in Saguache County, Colorado, United States.^[1] The town population was 17 at the 2020 United States Census.^[4] Formerly known as Bonanza City, Bonanza is a largely abandoned former silver mining town. Bonanza is a Spanish language word meaning prosperity.

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Bonanza, Colorado
Statutory Town[1]
Main Street and 1st Avenue in Bonanza.
Location of the Town of Bonanza in Saguache County, Colorado.
Bonanza Location in Colorado Show map of Colorado Bonanza Location in the United States Show map of the United States
Coordinates: 38.2947°N 106.1422°W / 38.2947; -106.1422 (Town of Bonanza)[2]
Country	United States
State	Colorado
County	Saguache County[1]
Incorporated	1881-01-13, as the Town of Bonanza City[3]
Government
• Type	Statutory Town[1]
Area [4]
• Total	0.437 sq mi (1.133 km2)
• Land	0.437 sq mi (1.133 km2)
• Water	0.000 sq mi (0.000 km2)
Elevation	9,479 ft (2,889 m)
Population  (2020)[4]
• Total	17
• Density	39/sq mi (15/km2)
Time zone	UTC−07:00 (MST)
• Summer (DST)	UTC−06:00 (MDT)
ZIP Code	Villa Grove CO 81155[5]
FIPS code	08-07571
GNIS feature ID	0189929
Highways	none

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In 1880, Tom Cooke of Salida stumbled upon ore deposits while searching for horses. Prospectors flocked to this location and the town of Bonanza City was founded. In the first two years of its existence, its population ballooned to between 1,000 and 1,500. At the time, population of mining towns was determined by the number of saloons and dance halls instead of a census taker and at this time, Bonanza City had 36 saloons and 7 dance halls.^[6]

Bonanza is located at 38.2947°N 106.1422°W / 38.2947; -106.1422 (Town of Bonanza) at an elevation of 9,479 feet (2,889 m).^[7] At the 2020 United States Census, the town had a total area of 280 acres (1.133 km²), all of it land.^[4]

As of the census^[8] of 2000, there were 14 people, 7 households, and 3 families residing in the town. The population density was 31.9 inhabitants per square mile (12.3/km²). There were 33 housing units at an average density of 75.3 per square mile (29.1/km²). The racial makeup of the town was 71.43% White, 7.14% Asian, and 21.43% from two or more races.

There were 7 households, out of which 14.3% had children under the age of 18 living with them, 42.9% were married couples living together, and 57.1% were non-families. 42.9% of all households were made up of individuals, and none had someone living alone who was 65 years of age or older. The average household size was 2.00 and the average family size was 3.00.

In the town, the population was spread out, with 7.1% under the age of 18, 28.6% from 18 to 24, 14.3% from 25 to 44, 50.0% from 45 to 64, . The median age was 44 years. For every 100 females, there were 180.0 males. For every 100 females age 18 and over, there were 160.0 males.

The median income for a household in the town was $63,750, and the median income for a family was $27,000. The per capita income for the town was $66,857. None of the population and none of the families were below the poverty line.

• Bibliography of Colorado
• Geography of Colorado
• History of Colorado
• Index of Colorado-related articles
• List of Colorado-related lists
  • List of ghost towns in Colorado
  • List of municipalities in Colorado
  • List of post offices in Colorado
• Outline of Colorado